Home / 3,658.31-5,048.47-1,979.72

Finding the Fourth Proportional to 3,658.31, 5,048.47 and 1,979.72

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Solution

The fourth proportional to 3,658.31, 5,048.47 and 1,979.72 is: 2,732.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.31 : 5,048.47 = 1,979.72 : x
  2. Step 2: Convert to fraction form
    3,658.31/5,048.47 = 1,979.72/x
  3. Step 3: Cross multiply
    3,658.31x = 5,048.47 × 1,979.72
  4. Step 4: Simplify right side
    3,658.31x = 9,994,553.19
  5. Step 5: Solve for x
    x = 9,994,553.19/3,658.31
  6. Step 6: Final answer
    x = 2,732.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.